Steel-back brake-shoe.



E0. 822,352. PATENTED JUNE 5, 1906. H. DAVIS. STEEL BACK BRAKE SHOE.

APPLICATION FILED APE.13,1906.

IiH

WITNESSES: INVE/VTOR Q G 87 I EQWEE M I ATTORNEY.

LT H. DAVlEi, ill? PlllLAlHiLlillA, PENNSYLVANIA.

Sipecifieation of Letters Patent.

Patented June 5, 1906.

Application filed April 13,1966; Serial No. 311,440,

a certain new and useful improvement in SteehBaelt Bralte Shoes, ofwhieh the lohoiw ing is atrue and exact description, reterenee being hadto the aeeoinpnn v'ing drawings, which form a part thereof.

My invention relates to the class of brake-- shoes 'usuall v known assteel-hark brakesl1oes--that. is'to say, east-inetzrl shoes havingineorporated therewith as hacking sheets or rods of rolled metal,usually of steel: and my invention consists, essentially, of the novel-construction of a sheet-metal backing for such brake-shoes.

The nature of my invention will he host nnderstood as deseribed inconnection with the drawings in whieh it is illustrated. and in which ,4

Figure 1 is a side elevation of a brake-shoe embodying my invention.Fig. "l is a top or rear view of such a shoe; Fig. 3, a centralcross-seetion on the line 3 3 of Fi 1 Fig. l, a *Cross-seetion on theline t i ol l ig. 2; Fig. 5, .a. side view ofihthe sheet-metal backing;.l ig. 6, an end view thereof. Fig. 7 is a rear view thereof. Fig. 8 isa view of the sheet-metal plate. from which my backing is formed bybending, and Fig. 9 is 9. view showing in section ainodiiied andpreferred construction of the loop.

My shoe-backing COIlSiSlS of four arms 21 AL, 1&9, united to a loop D bycurved arms B C, the whole being formed from a single sheet of metal,sueh as is shown in. Fig. 8, the blunt;

consisting of a rectangular plate slitv longitudinally, as indieated atG G.

The backing is secured to and ineorporated with the. cast-metal shoe. inthe manner clearly indieated in Figs. 1 to l. in whieh E indieates thetop of the shoe. and-F F rearwardly-extending lugs which incorporate theuprights it iand extend, bypreference, level with the top of the loopI). l preferably strengthen and still'en the loop by corrugating it, asshown in Fig. 9 at l).

Having now described my invention, what I elaini as new, and desire tosecure byl eh ters Patent, is

"l.- A sheetanetal backing for a cast brakeshoe having the arms A,united to a loop through curved connecting-arms and all formed from asheet of metal.

'2. A. sheet-metal backing for a east brakeshoe having the arms A,united to acorrugatwi. loop through curved connerting-arins and-alltormed from a sheet of metal.

3. A sheet-metal backing for a east bra-keshoe having the arms A,through curved connecting-arms and all formed from av sheet ol metal incombination with a shoe secured to said backing by easting.

4. A sheet-metal backing for a east brakeshoo having the arms A, unitedto a corrugated loop through curved eonneetingmrnis and all formed froma sheet of metal in combination with a shoe secured to saidbaclting bycasting.

NATHAN H. DAVIS. Witnesses AnnoLn KATZ, l). STEWART.

united to a loop

